论底苏铅锌矿床成矿物理化学条件  

ON ORE-FORMING PHYSICAL-CHEMICAL CONDITIONS OF THE DISU Pb-Zn DEPOSIT

作　　者：朱赖民[1] 袁海华[1] 

机构地区：[1]成都理工学院地质学系,成都理工学院测试中心

出　　处：《成都理工学院学报》1995年第4期15-21,共7页Journal of Chengdu University of Technology

摘　　要：应用地球化学热力学方法研究了底苏铅锌矿床成矿物理化学条件。研究结果表明，成矿温度为中低温，成矿深度小于２ｋｍ。含矿热液呈酸性，还原性较强，含盐度为８．９６％～１６．７％，富氯贫硫。铅锌主要以ＰｂＣｌ＿２０和ＺｎＣｌ＿２０形式迁移，并在层间破碎带中沉淀富集。物理化学条件改变是导致矿质再沉淀的重要因素。On the basis of the geochemical thermodynamic method,the ore-forming physical-chemical conditions of the Disu Pb-Zn deposit is studied in this paper. The results show that the Ph-Zn deposit was formed under a low or middle temperature and at a depth of less than 2 km. The ore-forming solution was lower in pH and Eh, poor in sulfur and rich in Cl, and had a moderate salinity. The metals in the ore-formins solution were mainly misrated as chloride comlexes,such as PbCl20 and ZnCl20. When the ore-forming fluids were conversed into the intra formational fault zone,Pb and Zn were deposited, and its main reason was the change of physical-chemical conditions.

关 键 词：成矿 物理化学条件 矿化 铅锌矿床 

分 类 号：P618.420.5[天文地球—矿床学] P618.430.5[天文地球—地质学]